40212260 has 48 divisors (see below), whose sum is σ = 94106880. Its totient is φ = 14307840.

The previous prime is 40212251. The next prime is 40212281. The reversal of 40212260 is 6221204.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8396 + ... + 12284.

It is an arithmetic number, because the mean of its divisors is an integer number (1960560).

Almost surely, 2^40212260 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40212260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47053440).

40212260 is an abundant number, since it is smaller than the sum of its proper divisors (53894620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40212260 is a wasteful number, since it uses less digits than its factorization.

40212260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3956 (or 3954 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 40212260 is about 6341.3137440124. The cubic root of 40212260 is about 342.5990549447.

Adding to 40212260 its reverse (6221204), we get a palindrome (46433464).

The spelling of 40212260 in words is "forty million, two hundred twelve thousand, two hundred sixty".